Dev Tools · 1h ago
Migrating FastAPI Endpoints to Async with arq/Redis
A developer migrated a synchronous PDF ingest endpoint in FastAPI to async using arq and Redis. The original endpoint blocked for minutes on dense PDFs due to OCR and LLM extraction. The new architecture enqueues jobs and returns a job ID for client polling.
Meridian48 take
The article is a practical walkthrough, but the real takeaway is that offloading heavy work to a task queue is a standard pattern, not a novel solution.
fastapiasync-migration